Public Address & Intercom Systems with VoIP Intercom Stations and Analog and/or VoIP Distributed Amplification • 030.420

March 28, 2024 • 11:04

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Public Address & Intercom Systems with VoIP Intercom Stations and Analog and/or VoIP Distributed Amplification


Main Features
• Fully integrated Public Address / Intercom / Telephone System.
• Distributed amplification (alternative or integrative to a centralized amplification) performed through the use of self-amplified loudspeakers with built-in power amplifier, available in both analog and IP versions.
• Analog self-amplified loudspeakers (rated power: 15W or 25W; power supply: 24-48Vdc) fitted with continuous volume control from 0W to the max rated power.
• IP self-amplified loudspeakers (max. power output: 25W with POE+ and 10W with POE), capable to be remotely configured and monitored, and fitted with ALC (Automatic Level Control) of the output power according to the variation of the ambient noise level.
• Extended intercom operation (omnibus page/party, selective point-to-point, group calls and conference calls), with virtually unlimited number of simultaneous conversations.
• Paging zone calls (including single zones, any combination of zones and all zones).
• Alarm tones and/or prerecorded messages zone broadcasts (including single zones, any combination of zones and all zones).
• Double functionality of Public Address / Intercom stations and plant telephone sets, i.e. Public Address / Intercom stations working also as telephone sets connected to the plant PABX, as well as plant telephone sets working also as Public Address / Intercom stations connected to the Public Address/Intercom System.
• Public Address / Intercom stations fitted with double full-duplex conversation mode: with handset or hands-free (without handset).
• Possibility to utilize as Public Address / Intercom stations any type of Fitre IP telephone sets (indoor, weatherproof and explosion-proof, including cordless/DECT).
• Main Public Address / Intercom stations (access panels) VoIP based, fitted with handset and keypad. If required, also equipped with gooseneck microphone and additional 40 buttons (up to 48 in total) keypad for direct activations.
• Very cheap and cost-effective cables network (LAN network to interconnect all IP Public Address / Intercom stations and two standard telephone pairs for each loudspeaker).
• All Fitre VoIP terminals (Public Address / Intercom stations and access panels) can be connected with a maximum allowed distance of 250 meters from the relevant LAN switch (instead of 100 meters as per usual standard).
• System architecture allowing, in case of fault of a field device (Public Address / Intercom stations, speakers and beacons), the complete operation of all other field devices even in case of multiple fault events.
• Digital noise cancelling and noise reduction algorithms, so as to allow the intercom user to communicate in hands-free and full-duplex mode even if the ambient noise level is more than 100dB.
• Telephone interface with the plant Telephone System.
• Radio interface with the plant Radio System.
• Interfacing with existing P. A. and Intercom Systems.

Main Applications
Oil & Gas, Petrochemical, Power, Steel, Heavy and Light Industries.

Main Options
• Indoor speakers for accommodation areas fitted with volume control which in case of emergency calls will be overridden, and the volume automatically set up at the maximum level.
• Analog self-amplified loudspeakers fitted with ALC (Automatic Level Control) of the output power according to the variation of the ambient noise level.
• Broadcast of pre-recorded messages and music through radios, CD readers and MP3 players.
• Dual feeders power supply managing.
• Central cabinets fitted with surge protectors.
• Central cabinets fitted with antiseismic kit.
• Power supply unit in redundant configuration “1+1”.
• System full duplication in “A+B” configuration.




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